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Reply to "Correlator Noise floor inflation by Legacy Signal Interfering with DCS"

Adrian! posted:

Sorry folks, it’s not good yet. The smaller/shorter dcs commands (whistle and stuff go unnoticed) but the moment you ask to “add engine” all the tmcc/legacy trains stop on their tracks.

im going to modify the board so it switches the legacy carrier to a reduced amplitude instead of a hard off....

 

 

That's disappointing. I have good and bad days on the SD3R layout. Tried running my MTH PS3 engines there on New Year's Day. Ran fine for a couple of hours and then the simple commands stopped being executed by the engines (setting the speed, direction change, whistle, etc.), I had no problems adding the engines. The only way I could stop the trains was by cutting the track power. In some cases, if there was no response to commands, about 15 seconds later, all the attempted commands would be executed at once, like they were being queued up and then dumped. Weird. I had to pack up my stuff and go home since the system became unusable.

I do have one question for you Adrian. When SD3R switched from four TIUs to one TIU, they connected the single unit up in passive mode (as opposed to running the track power through the TIU).  I read that a passive connection has weaker signal than and active one. Would going back to an active connection for the TIU improve the signal or is the difference inconsequential? I know you provided a new TIU and supporting protection electronics for the club, but I don't know how you have it wired.

Thanks again for all your help!

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